Shock-absorber.



No. 849,150. PATENTED APR. 2, 1907.

W. MAZZOOGO.

SHOCK ABSORBER. APPLICATION FILED SEPT. 28. 1906.

2 SHEETS-SHEET 1 IN VE N TOR PATENTED APR. 2, 1907.

W. MAZZOOGO.

SHOCK ABSORBER.

APPLICATION FILED SEPT. 2a. 1906.

2 SHEETSSHEET 2.

lIVl/E/VTOR WITNESSES.

UNITED STATES PATENT OFFICE.

SHOCK-ABSORBER.

7 Specification of Letters Patent.

Eatented Aprii 2, 1907.

, Application filed September 28, 1906. Serial it 336,589.

To all whom, it may concern:

Be it known that I, WILLIAM MAzzooco, a subject of -the King of Italy, a resident of Plainfield, county of Union, State of New Jersey, have invented certain new and useful Improvements in Shock-Absorbers, of which the following is a specification.

My invention relates to a shock-absorber for vehicles and cars of all kinds, which operates by means of springs arranged so that one spring takes up the recoil of another when the mainspring of the vehicle or car is in action. v

The present shock-absorbers with air-cush ions alone or aircushions withopposing springs have the disadvantage that in riding over several rough spots in rapid succession the device has not time enough after taking up the first shock to return to its original' po* sition in order to take up entirely the subsequent shock, as the air or fluidin the cushion cannot rush in or out of the cylinder fast enough to allow the piston to return to itsnormal position. This fact not only impairs the action of the device itself, but stiffens at the same time the action of the mainspring of the vehicle. Shock-absorbers operating by friction alone have the disadvantage that the friction to which they are adjusted decreases by the continuous motion ofthe frictional disks even after only a short traveling distance of the vehicle, as long tests have proven, and therefore require constant ad-v justment. By the present invention all these disadvantages are overcome by means of the novel arrangement .of the shock-absorbing, springs. I

In the accompanying drawings, Figure 1 is a side view of the device. Fig. 2 is a front view of the head-piece and bracket connectedwith the vehicle-frame. Fig. 3 is a front view of the head-piece and bracket connected with the vehicle-spring. Fig. 4 is a modification of Fig. 1, showing retraction-springsinstead of expansion-springs.

I In Fig. 1, 1 2 are two two-armed levers pivoted in their common fulcrums by the bolt 3 and held together by the nut 4, which may of 7 course be tightened so as to obtain any suitable friction between the two levers in their common fulcrum. 'The ends 5 6 of the levers are suitably shaped to fit movably into the forked head-pieces 7 8, which are. pivotally fastened to the levers by the bolts 9 10. The ends 1 1 12 of levers 1 2 are suitably shaped to fit into the forked brackets 13 14, Which are tothese ends 11 12 pivotally fastened by the bolts 17 18. Bracket 13 is fastened, besides, to the vehicle-frame 15 by screws 22 and bracket 14 to the vehicle-spring 16, under the clips 19, by which spring 16 is fastened to the vehicle-axle 20 in the well-known manner.

Between brackets 13 and 14 and headpieces 7 and S are inserted the coil-springs 23 and 24, respectively, and prevented from slipping out by the studs 25, which form a part of the'head-pieces and brackets.

In caseof the form shown 111 Fig. 1 the springs have to be inserted between the levers under a certain compression in order to 1prevent each spring from slipping out ofits ead-pieces when the jaws on that side open Fig. 1 shows the device in normal position.

will be readily seen that if axle 20, with mainspring 16, approaches vehicle-frame 15, caused by the vehicle striking the uneve'n ness of the road, coil-spring 23 will be compressed, and thus aid spring 16.. In rebounding spring 16 will open the jaws or arms 11' and 12 beyond their normal position, (shown in Fig. 1,) and consequently cause the arms 5 and '6 to close and to coinpresss ring 24, which counteractsthis 1110131011 of t elevers,

and thus checks the rebound of spring 16.

'Instead of using springs acting by means of their expansion, as shown in Fig. 1, one may use between the levers to the same advantage springs acting by means of their retraction, as shown in Fig. 4.

34 and 35 are suit- The retraction-springs to the vehicle-frame by the eye 32 and one end of lever 31 to the vehicle-spring by eye '33.; The vehiole spring in taking up the first impact of the shock, and time coming nearer to the yehicle-frame,.is opposed by the reably fastened to the arms of levers 30 and '31-. One end of one leyer 30 is suitably fastened traction-spring 35, as the jawson' that side will then open. Durin the rebound of the vehicle-Sprmg, inwhic the latter one re-.

cedesfrom the vehicle fram'e beyond its nor-. mal position, retraction-spring 34 will come into action and check the-rebound.-

,One will'readily see :thatmy hockeab-i -sorber has the great advantage that the springs between the levers will instantly 'follow and counteract any motion of the mainspring of the vehicle without causing thereby any wear by fr ction, as is the case, for instance, in the shock-absorber operating by frictional disks, as already stated before.

While Ihave shown in the drawings the l without changing springs fastened with'their head-pieces to the ends of the levers,

tened to the same mediate suitable 111g relative motion in either direction between said levers. Y

2.- In a shock-absorber, the combination with a pair of levers fulcrumed together at an intermediate point and opening at one side when Closed at the opposite side, of yielding means between said levers at each side tending to oppose relative motion between the levers in either direction beyond the normal intermediate position.

3. In a shock-absorber, the combination with a pair of levers fulcrumed together at an intermediate point and opening at one side when closed at the opposite side, of springs between said levers opposing relative motion in either direction between said levers.

4. In a shock-absorber, thecombination with a pair of levers fulcrumed together at an intermediate point and opening at one side when closed at the opposite side, of springs between the levers at each side tending to oppose relative motion between the levers in v either direction beyond the normal interme diate position. I

5. In a shock-absorber for vehicles,- the combination with a pair of leversfulcrumed together at an intermediate point and opening at one side when closed at the opposite side and means between said levers yieldingly 0pposing relative motion between the levers in either direction, of suitable means for securing said levers at on side to the vehicle-body and the vehicle-spring respectively.

6. In a shock-absorber, the combination with 'a pair of levers fulcrumed together at an intermediate point and opening at one side when closed at the opposite between said levers opposing relative motion between the levers in either direction, of suitable means for securing said levers at one side to the vehicle-body and the vehiclespring respectively. v

7. In a shock-absorber fdr vehicles, the combination with a pair of levers fulcrumed ally connected with said levers;

side and springs seams cle-body and the vehicle-spring respectively.

8. In a shock-absorber, the combination with a pair of levers fulcrumed together at an intermediate when closed at the opposite si e and springs between said levers opposing relative motion between the levers in either direction, of means for pivotally connecting said levers at one side to the vehicle-body and the vehiclespring respectively.

9. In a shock-absorber, the combination with a pair of levers fulcrumed together at an intermediate point, and head-pieces pivotof springs bepoint and opening at one side point and opentween said levers fitting into said headpieces, yieldingly opposing the relative motion in either direction between said levers.

10. In a shock-absorber, the combination with a pair of levers fulcrumed together at an intermediate point, and head-pieces pivotally connected with said levers, of springs between said levers fitting into said head-pieces yieldingly opposing the relative motion in either direction between said levers beyond a normal intermediate point.

11. In a shock-absorber for vehicles, the combination with a pair of levers fulcrumed together at an intermediate point, springs opposing relative motion between the levers in either direction, and head-pieces pivotally connected withsaid levers and adapted to receive the ends of said springs, of brackets suitably connected'with one end of each lever for securing said levers to the: vehicle- ,body and the vehicle-spring respectively.

12. In a shock-absorber for vehicles, the ,combination with a pair of levers fulcrumed together at an intermediate point, springs 0pposing relative motion between the levers in either direction beyond a normal intermediate position and head-pieces pivot-ally con-' nected with said levers and adapted to re-.

ceive the ends of said springs, of brackets suitably connected'withone end of each lever for securing said levers to the vehiclebody and the vehicle-spring respectively.

WILLIAM MAZZOCCO. Witnesses H. ALFRED JANKE,

EDWARD B. RYDER. 

